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प्रश्न
A wave moving in a gas
विकल्प
must be longitudinal
may be longitudinal
must transverse
may be transverse.
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उत्तर
must be longitudinal
Because particles in a gas are far apart, only longitudinal wave can travel through it.
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संबंधित प्रश्न
When a transverse wave on a string is reflected from the free end, the phase change produced is ..............
(a) zero rad
(b) ` pi/2 ` rad
(c) `(3pi)/4` rad
(d) `pi` rad
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Where x and y are in cm and t in s. The positive direction of x is from left to right.
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If it is travelling, what are the speed and direction of its propagation?
(b) What are its amplitude and frequency?
(c) What is the initial phase at the origin?
(d) What is the least distance between two successive crests in the wave?
Given below are some functions of x and t to represent the displacement (transverse or longitudinal) of an elastic wave. State which of these represent (i) a traveling wave, (ii) a stationary wave or (iii) none at all:
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Explain the reflection of transverse and longitudinal waves from a denser medium and a rared medium.
A wave going in a solid
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Given below are some functions of x and t to represent the displacement (transverse or longitudinal) of an elastic wave. State which of these represent (i) a traveling wave, (ii) a stationary wave or (iii) none at all:
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